US5916344A - Rod centering device for an automatic lathe feeder - Google Patents
Rod centering device for an automatic lathe feeder Download PDFInfo
- Publication number
- US5916344A US5916344A US08/988,768 US98876897A US5916344A US 5916344 A US5916344 A US 5916344A US 98876897 A US98876897 A US 98876897A US 5916344 A US5916344 A US 5916344A
- Authority
- US
- United States
- Prior art keywords
- sectors
- rod
- superimposed
- accordance
- positions
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B13/00—Arrangements for automatically conveying or chucking or guiding stock
- B23B13/12—Accessories, e.g. stops, grippers
- B23B13/126—Supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B13/00—Arrangements for automatically conveying or chucking or guiding stock
- B23B13/04—Arrangements for automatically conveying or chucking or guiding stock for turning-machines with a plurality of working-spindles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/72—Auxiliary arrangements; Interconnections between auxiliary tables and movable machine elements
- B23Q1/76—Steadies; Rests
- B23Q1/763—Rotating steadies or rests
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T82/00—Turning
- Y10T82/25—Lathe
- Y10T82/2514—Lathe with work feeder or remover
- Y10T82/2516—Magazine type
- Y10T82/2518—Bar feeder
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T82/00—Turning
- Y10T82/25—Lathe
- Y10T82/2514—Lathe with work feeder or remover
- Y10T82/2521—Bar feeder
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T82/00—Turning
- Y10T82/25—Lathe
- Y10T82/2568—Center
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T82/00—Turning
- Y10T82/25—Lathe
- Y10T82/2593—Work rest
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T82/00—Turning
- Y10T82/25—Lathe
- Y10T82/2593—Work rest
- Y10T82/2595—Work rest with noise or vibration dampener
Definitions
- the present invention relates to a device for centering rods fed to a lathe.
- Centering devices arranged immediately upstream of the chuck confine the rod laterally to bring it back to satisfactory linearity near the chuck.
- the centering action must be effective but at the same time the rod must not be excessively constrained in order not to prevent discharge of vibrations within the magazine guides. Lateral confinement must therefore have a predetermined play which must be adjustable depending on the changing rod diameter.
- the centering unit must also have sufficiently expandable passage to permit transit of the rear grasping collet of the magazine which has greater diameter than the rod.
- FIG. 1 shows a front view of a multiple centering unit provided in accordance with the present invention
- FIG. 2 shows a partial cross-section along plane of cut II--II of FIG. 1.
- FIG. 1 With reference to the figures in FIG. 1 there is shown a front view (i.e. viewed from the side where the rods emerge from the outlet of a rod feeder towards the inlet of a lathe) of a centering device which comprises as many centering units 11 as there are rods simultaneously feedable to the lathe.
- a centering device suited for a 3-position multichuck lathe (the lathe chuck is shown schematically by reference number 12 in FIG. 2).
- the centering device comprises a circular supporting frame 13 to support the various centering units 11.
- Each centering unit 11 comprises two arcuate sections or sectors 14, 15 arranged in spaced, parallel planes in circular recesses formed on the two opposing faces of the frame to be coaxially of the circumference of the frame.
- Each of the sectors 14, 15 has therethrough a circular passage 16, 17 (formed advantageously of a roller bearing).
- the circular passage is sufficiently ample to allow passage of the magazine collet.
- the supporting frame 13 is drilled opposite the passages so that a rod to be fed can traverse the centering unit via the passage port formed by the registering portions of the passages 16 and 17 of the mutually aligned sectors.
- Each sector is operated to pivot circumferentially around a central axis of the frame by means of a linkage 18 moved by an actuator 19.
- FIG. 1 shows linkages and actuators of the sectors on the visible face of the device. The opposite face is equivalent to the one shown.
- the centerlines of the passages 16, 17 thereof may be offset symmetrically relative to the center of the rod passage port thereby to reduce the operative size of the passage port as seen for the upper centering unit in FIG. 1.
- the contact between the fed rod 20 and the inner peripheral surfaces of passages 16, 17 of the centering units takes place only on opposing surfaces of the rod depending on the intersection of cylinders. It has been found that this allows perfect guidance of the rod with minimal vibrations and friction. In the prior art there was a tendency to grip the rod with the greatest possible number of contact points along the circumference of the rod.
- the actuators 19 are supported on each side of the frame 13 by the interposition of an external ring 21 which can be partially rotated around the frame thanks to its guide grooves 22 guided on pins 23 in the frame.
- the ring can be locked by means of a screw (not shown). In this manner it is possible to regulate the position of the actuators with respect to the associated pivot pins 24 of the linkages 18 so as to allow adjustment of the offset of the passages 16, 17 with the actuators in the rest position.
- adjustable stops 25 which interfere with the edge of the moving sectors when in the predetermined passage port closing position.
- the stops are supported at each side of frame 13 on a central ring 26 rotating by means of grooves 27 in it and pins 28 in the frame.
- the central ring can be locked once adjusted by means of a setscrew (not shown).
- the centering unit can be fixed in position on the magazine by means of a central collar 29 which can be clamped with a screw on a shaft 30 of the magazine.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turning (AREA)
Abstract
Description
Claims (7)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI96A2719 | 1996-12-23 | ||
IT96MI002719A IT1289506B1 (en) | 1996-12-23 | 1996-12-23 | BAR CENTERING DEVICE FOR AN AUTOMATIC FEEDER FOR LATHE |
Publications (1)
Publication Number | Publication Date |
---|---|
US5916344A true US5916344A (en) | 1999-06-29 |
Family
ID=11375474
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/988,768 Expired - Fee Related US5916344A (en) | 1996-12-23 | 1997-12-11 | Rod centering device for an automatic lathe feeder |
Country Status (3)
Country | Link |
---|---|
US (1) | US5916344A (en) |
EP (1) | EP0850714A1 (en) |
IT (1) | IT1289506B1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050046125A1 (en) * | 2003-08-29 | 2005-03-03 | Helmut Schuster | Center drive machine and clamping device therefore |
US20080290540A1 (en) * | 2007-05-23 | 2008-11-27 | David Griffin | System and method for centering a clay plug on a potter's wheel |
US9694425B2 (en) | 2011-03-30 | 2017-07-04 | Fmb Maschinenbaugesellschaft Mbh & Co. Kg | Bushing alignment device for a bar loading magazine and method |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1294199B1 (en) * | 1997-09-09 | 1999-03-22 | Iemca Spa | DEVICE TO GUIDE A BAR TO THE OUTPUT OF A FEEDING LOADER OF A LATHE. |
DE102007004726A1 (en) | 2007-01-22 | 2008-07-31 | Kurt Breuning Irco-Maschinenbau Gmbh | A material bar feeder for feeding material bars to a machine tool |
DE102007009296A1 (en) * | 2007-02-16 | 2008-08-21 | Index-Werke Gmbh & Co. Kg Hahn & Tessky | processing device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU565779A1 (en) * | 1975-11-12 | 1977-07-25 | Институт Механики Металлополимерных Систем Ан Белорусской Сср | Supporting and guiding assembly |
US4058036A (en) * | 1976-07-09 | 1977-11-15 | Richard Arnold Austin | Adjustable spindle liner tube or filler tube |
US5180174A (en) * | 1991-06-27 | 1993-01-19 | Province Clarence T | Potter's wheelhead assembly with relocatable axis of rotation |
US5275072A (en) * | 1991-11-20 | 1994-01-04 | Gebr. Heller Maschinenfabrik Gmbh | Center drive support for supporting a crank shaft during machining |
US5649462A (en) * | 1994-06-07 | 1997-07-22 | Cucchi Giovanni & C. S.R.L. | Angularly swingable self-centering device for supporting rotatable bar stocks |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1146189B (en) * | 1979-09-18 | 1986-11-12 | Schumag Gmbh | PROCEDURE AND DEVICE FOR STRAIGHTENING LONG DRAWN IRONED MATERIAL |
US5113730A (en) * | 1988-06-13 | 1992-05-19 | Paul Ducanis | Bar stock guide arrangement for screw machines |
IT1245821B (en) * | 1990-11-12 | 1994-10-24 | Cucchi Giovanni & C Srl | SELF-CENTERING GUIDE DEVICE FOR BAR FEEDERS |
-
1996
- 1996-12-23 IT IT96MI002719A patent/IT1289506B1/en active IP Right Grant
-
1997
- 1997-12-11 US US08/988,768 patent/US5916344A/en not_active Expired - Fee Related
- 1997-12-17 EP EP97203968A patent/EP0850714A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU565779A1 (en) * | 1975-11-12 | 1977-07-25 | Институт Механики Металлополимерных Систем Ан Белорусской Сср | Supporting and guiding assembly |
US4058036A (en) * | 1976-07-09 | 1977-11-15 | Richard Arnold Austin | Adjustable spindle liner tube or filler tube |
US5180174A (en) * | 1991-06-27 | 1993-01-19 | Province Clarence T | Potter's wheelhead assembly with relocatable axis of rotation |
US5275072A (en) * | 1991-11-20 | 1994-01-04 | Gebr. Heller Maschinenfabrik Gmbh | Center drive support for supporting a crank shaft during machining |
US5649462A (en) * | 1994-06-07 | 1997-07-22 | Cucchi Giovanni & C. S.R.L. | Angularly swingable self-centering device for supporting rotatable bar stocks |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050046125A1 (en) * | 2003-08-29 | 2005-03-03 | Helmut Schuster | Center drive machine and clamping device therefore |
US7500419B2 (en) * | 2003-08-29 | 2009-03-10 | Helmut Schuster | Center drive machine and clamping device therefore |
US20080290540A1 (en) * | 2007-05-23 | 2008-11-27 | David Griffin | System and method for centering a clay plug on a potter's wheel |
US7641464B2 (en) * | 2007-05-23 | 2010-01-05 | David Griffin | System and method for centering a clay plug on a potter's wheel |
US9694425B2 (en) | 2011-03-30 | 2017-07-04 | Fmb Maschinenbaugesellschaft Mbh & Co. Kg | Bushing alignment device for a bar loading magazine and method |
Also Published As
Publication number | Publication date |
---|---|
IT1289506B1 (en) | 1998-10-15 |
ITMI962719A1 (en) | 1998-06-23 |
EP0850714A1 (en) | 1998-07-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: PIETRO CUCCHI S.P.A., ITALY Free format text: ;ASSIGNOR:CUCCHI, PIETRO;REEL/FRAME:008914/0862 Effective date: 19971007 Owner name: PIETRO CUCCHI S.P.A., ITALY Free format text: DOCUMENT PREVIOUSLY RECORDED AT REEL 8914 FRAME 0862 CONTAINED AN ERROR IN PROPERTY NUMBER 08/988,769. DOCUMENT RERECORDED TO CORRECT ERRORS ON STATED REEL.;ASSIGNOR:CUCCHI, PIETRO;REEL/FRAME:009262/0816 Effective date: 19971007 |
|
REMI | Maintenance fee reminder mailed | ||
LAPS | Lapse for failure to pay maintenance fees | ||
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
|
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20030629 |